Hi Daniel,
> On Nov 2, 2018, at 3:40 AM, Daniel Fuchs <daniel.fu...@oracle.com> wrote:
>
> If skip(n) returns a negative number, e.g. -1, then you might
> end up skipping more than n bytes (unless skip returning
> -1 indicates that EOF was reached).
I suppose you mean line 571:
571 if (n > 0 && (n -= skip(n)) > 0) {
I was assuming that if n > 0, then skip(n) will (usually) return a value in
[0,n] although given the weird specification of FIS it might return something
in [0,m] where m > n. Perhaps that assumption is wrong.
> Basically, I don't think you can make any guarantee of how
> many bytes will be skipped if a subclass has an implementation
> of skip that misbehave by returning -1 (or any other negative
> value).
If skip(n) for n > 0 returned a negative value then I would think that would be
a subclass bug but then it would still be a problem ...
> Maybe there should be some @implSpec note to say that
> no guarantee is made if a subclass implementation of
> skip() returns non-positive (or non accurate) results?
Agreed.
Thanks,
Brian
